On this page
- The short answer: most jobs, off the road, with room to work
- The driveway jobs list: what a mobile mechanic can normally do
- Four limits that are set by law, not by the mechanic
- What it costs, and why mobile and workshop prices are not comparable
- Before you book: a seven-point check
- Frequently asked questions
- Finding a mobile mechanic or a garage near you
The short answer: most jobs, off the road, with room to work
Two separate questions decide whether a job happens at your address, and they get confused constantly. The first is physical: can this be done with a trolley jack, axle stands and hand tools, in a few hours, by one person? The second is legal: is it lawful to do it where your car is standing? Many guides answer the first without explaining the second, which is the one that catches readers out when a mechanic turns up and refuses to start.
What "mobile" actually means for your booking
A mobile mechanic works from a van carrying hand tools, a trolley jack and axle stands, diagnostic equipment, oil, filters and common consumables. The car stays where it is and the work happens at ground level, so the space around it matters more than the postcode. You want room to open both doors fully, get a jack under the sills and lay out parts.
Expect the booking window the trader quotes, and ask whether diagnosis may require a second visit for parts. Ask how the call-out fee works before you book, not after.
The driveway jobs list: what a mobile mechanic can normally do
What decides most of this list is physical: whether the car has to be held at height for a long time, and whether the job needs two people or a full working day. Wheel-off and engine-bay work suits a driveway. Anything that needs the whole car in the air does not, while jobs using calibrated equipment depend on whether the provider has a mobile system.
| Job | Normally done at your home? | What decides it |
|---|---|---|
| Interim or full service | Yes | Room to work and the manufacturer's schedule |
| Brake pads and discs | Yes | Wheel-off access |
| Battery replacement | Yes | Access and the correct battery for the car |
| Alternator or starter motor | Yes | Engine-bay access |
| Diagnostics and fault codes | Yes | Expect a fee and a plan, not always a fix |
| Suspension: shock absorbers, ball joints | Usually | Corroded fixings may defeat it on site |
| Clutch replacement | Depends | Engine size, tooling, two-person lifting |
| Cambelt or timing belt | Depends | Access and time; some traders decline it |
| Wheel alignment | Depends | Needs calibrated equipment; some providers offer mobile alignment |
| Engine or gearbox removal | No | Usually needs lifting equipment and a workshop |
| ADAS calibration after a windscreen or suspension job | Depends | Follow the vehicle-maker procedure; calibration may be static, dynamic or self-calibrating |
| MOT test | No | Legal, see the table below |
Routine servicing (interim, full and oil changes)
Yes, a mobile mechanic can do a full service at your home: oil and filter, air and pollen filters, spark plugs on engines with accessible plugs, fluid levels topped up, and brake, tyre and light checks.
The service should follow the manufacturer's schedule and be recorded, on paper or digitally. Ask for the record to be completed at the end of the visit and keep the invoice.
Brakes, batteries, alternators and starters
This is the core mobile repertoire. These jobs generally use wheel-off or engine-bay access and do not require the whole car to stay raised for hours.
Battery replacement is a standard mobile job. So are brake pads and discs. Alternators and starter motors depend on where the manufacturer buried them, so give the make, model and engine size when you book.
Diagnostics and warning lights
A mobile mechanic can plug in, read fault codes and carry out live testing on your drive. What they can't do is promise a fix from a code alone.
A code names a circuit or a symptom, not a cause. A misfire code can be a coil, a plug, an injector or a wiring fault, and separating those takes testing. Expect to pay a diagnostic fee and get a plan. Be wary of any trader who quotes a repair price down the phone from a code you read yourself.
The jobs that go either way
Clutches, cambelts and heavier suspension work are genuinely mobile jobs for some traders and refused by others. It depends on the individual's tooling, their insurance, the engine, and the condition of the fixings.
Nobody can tell you from a distance whether one mechanic will take your job on your car. Anyone who claims otherwise is guessing on your behalf. Describe the car and the fault, then ask outright. If you drive an electric or hybrid car, competence is a separate question again, covered in whether any garage can service an electric car.
The jobs that need a workshop
Engine or gearbox removal and work that keeps the car raised for hours usually need a workshop. Wheel alignment needs calibrated equipment, but some providers offer it as a mobile service. ADAS camera and radar calibration after a windscreen replacement or suspension change depends on the vehicle-maker procedure and the required calibration type.
Some driver-assistance systems require static calibration with targets; others use dynamic or self-calibrating procedures, and some combine methods. Follow the vehicle manufacturer's procedure and use a provider with the equipment and site that procedure requires.
Four limits that are set by law, not by the mechanic
The next four limits depend on the job and the UK nation. A trader who says no may be complying with the law or with the requirements of the job, so check the rule that applies where the car is standing.
| The limit | What the rule actually says | Where it applies | What you do instead |
|---|---|---|---|
| MOT test | A test station needs suitable premises and approved equipment for the vehicle classes tested, plus an authorised examiner authorised by DVSA, with DVSA given access to those premises for checks (GOV.UK, "Set up an MOT test station") | Great Britain; Northern Ireland runs its own system | Book collection-and-delivery, or a pre-MOT check at home and the test at a station |
| Air-con refrigerant recovery | You must have a qualification to recover refrigerant from mobile air-conditioning in goods vehicles under 3.5 tonnes and passenger vehicles with 8 seats or fewer; it is against the law to work with F gas without the correct qualifications (GOV.UK) | UK-wide | Ask which awarding body certificated them, then book a certificated handler |
| Paid repairs on a road | "Restricted works" on a motor vehicle on a road are an offence; the defence is for work not done in the course of a business or for gain, so paid work is caught. In England and Wales, “road” includes a highway or other road to which the public has access. Maximum fine level 4, £2,500 (Clean Neighbourhoods and Environment Act 2005, s.4; Road Traffic Regulation Act 1984, s.142) | England and Wales; Northern Ireland has a corresponding rule in s.3 of its 2011 Act | Use a location that is not legally a road and obtain permission. The exception requires repairs arising from an accident or breakdown, necessity on the spot or elsewhere on the road, and completion within 72 hours or later local-authority authorisation |
| Taking away waste oil | Engine, gear and lubricating oils are hazardous waste; a business that transports waste must register as a waste carrier, with an unlimited fine for failing to (GOV.UK) | England, with separate registration processes in Scotland, Wales and Northern Ireland | Ask who takes the oil, and check the public register of waste carriers |
An MOT cannot be done during an ordinary home visit
An MOT test station depends on authorised premises and equipment as well as authorised people. GOV.UK's own guidance for setting up a test station requires suitable premises and approved equipment for the vehicle classes you want to test. It also takes an authorised examiner, authorised by DVSA, who must give DVSA staff access to those premises for checks on staff and equipment. Approved equipment includes brake-testing devices, headlamp aim testers and exhaust gas analysers, and the test must take place at an authorised station with the equipment approved for its vehicle classes.
So a mobile mechanic who is personally a qualified MOT tester still cannot test your car at the kerbside. What they can do is a pre-MOT check intended to flag likely failures before the test. It's not a test, and it produces no certificate.
The workable routes are collection-and-delivery by a mobile trader, or booking one of the MOT and vehicle inspection centres directly. The maximum fee a station may charge for a car is £54.85, with no VAT on top (GOV.UK). If the car fails, read what happens after an MOT failure before you drive it anywhere. Northern Ireland runs a separate system, with tests booked through nidirect at government vehicle test centres.
Air-conditioning regas: refrigerant recovery requires a qualified handler
Air-conditioning is the sharpest example, because here the law names the qualification. GOV.UK states that you must have a qualification to recover refrigerant from mobile air-conditioning systems in goods vehicles weighing less than 3.5 tonnes and passenger vehicles with 8 seats or fewer, which covers essentially every family car. It also says plainly that working with F gas without the correct qualifications is against the law, and that you could receive a civil penalty for it. The awarding organisations GOV.UK names for that qualification are City and Guilds, the Institute of the Motor Industry and Skills and Education Group Awards.
The GOV.UK Regulated Professions Register lists 281 regulated professions in the UK. Its current search does not list a general mechanic or vehicle-technician profession, but it does list “F-Gas Handler for Air-Conditioning Systems in Motor Vehicles”, UK-wide. That register-specific contrast is why the F-Gas certificate is the qualification to ask about for refrigerant recovery.
A mobile technician may hold the certificate and carry recovery equipment. Ask which body issued it, and if the answer is vague, book one of the car air-conditioning specialists instead.
Working on a public road: the rule, and the breakdown exception
Section 4 of the Clean Neighbourhoods and Environment Act 2005 makes it an offence to carry out "restricted works" on a motor vehicle on a road. Restricted works are defined widely: repair, maintenance, servicing, improvement or dismantling, and installing, replacing or renewing any part or accessory. That is a booked service, a brake job or a cambelt.
The defence in section 4(3) is for work not carried out in the course of a business of restricted works, and not for gain or reward. That wording is exactly why this bites on a paid mobile mechanic and not on you changing your own wiper blades. Section 4(4) removes even that defence where the work caused reasonable annoyance to people nearby. The maximum fine is level 4 on the standard scale, £2,500 (Sentencing Act 2020, s.122).
This section extends to England and Wales. Northern Ireland has an almost identical provision in section 3 of the Clean Neighbourhoods and Environment Act (Northern Ireland) 2011, in force since April 2012. The 2005 Act does not extend this offence to Scotland, so Scottish readers should check the rules that apply locally rather than infer them from the England and Wales provision. Whether the exact spot outside your house counts as a "road" in law is a question about your circumstances that nobody can answer for you.
Pro tip: The exception is the one worth remembering. Section 4(5) excepts repairs that arose from an accident or breakdown, where repairs on the spot or elsewhere on the road were necessary, and that are carried out within 72 hours of the accident or breakdown (or later if the local authority authorises it). That is why a qualifying roadside repair stands on a different footing from a service booked at the kerbside. The clock runs from the accident or breakdown, not from your phone call. For that situation, start with breakdown and roadside assistance rather than a booked repair slot.
Red flag: When a "yes" should worry you. A trader who offers booked restricted works at the kerbside on a road in England or Wales should be asked how the statutory rule applies, so arrange a location that is not legally a road and get the occupier's permission. Anyone who tells you an MOT can be done during an ordinary home visit is not describing an authorised test, so book collection-and-delivery instead. And a mechanic who cannot say what happens to your old oil is worth one more question: ask for their waste carrier registration number.
Where your old oil goes
A service can produce waste that is legally hazardous. GOV.UK classifies engine, gear and lubricating oils as hazardous waste (codes 13 02 04 to 13 02 08), along with brake fluids (16 01 13), antifreeze containing hazardous substances (16 01 14) and used oil filters (16 01 07*). The same guidance lists fluids that must not be mixed together, including mineral oils, brake fluids, anti-freeze and washer fluids.
A business that transports waste must register with the Environment Agency as a waste carrier, and GOV.UK warns you can get an unlimited fine if you don't register. Registration is usually free for a business carrying only waste it produces itself and costs £191.02 otherwise, with upper-tier registrations renewed every three years for £130.25. Which tier covers a mechanic taking your oil away turns on whose waste it is in law, so don't assume. Registrations appear on a public register you can search, and Scotland, Wales and Northern Ireland run their own processes.
Asked as a question rather than an accusation, it takes five seconds: "Are you taking the old oil, and are you a registered waste carrier?"
What it costs, and why mobile and workshop prices are not comparable
Preferred Mechanic's own cost profiles display the five categories side by side. The opened pages do not publish enough methodology to establish that the figures are booked-job aggregates or to support a like-for-like category comparison.
| Preferred Mechanic category | Minimum | Maximum | National average | Cost profiles |
|---|---|---|---|---|
| Mobile mechanics | £124 | £581 | £156 | 625 |
| Mechanic shops | £323 | £3,219 | £710 | 581 |
| Auto repair shops | £387 | £3,219 | £593 | 891 |
| Car air-conditioning repair | £196 | £3,381 | £457 | 825 |
| Roadside assistance | £81 | £527 | £133 | 874 |
Preferred Mechanic's own cost profiles. The five pages display these figures but do not publish enough methodology here for a like-for-like market comparison. Do not read the gap as a discount.
The displayed mobile maximum is £581, below the displayed £710 mechanic-shop average. That arithmetic is correct, but the pages do not publish the job-level data needed to explain the gap or compare like for like.
Call-out fees and how to compare two quotes fairly
Call-out charges and what they include vary by trader. Ask whether the charge covers travel, diagnosis or both, and whether any part of it is credited if the work goes ahead.
Settle three things in writing before you book, and any two quotes become comparable. First, what the price includes: labour only, or parts too. Second, who supplies the parts and what guarantee covers them. Third, what you pay if the job can't be completed at your address, which is the clause that decides who carries the risk on a fault nobody has seen yet.
When mobile genuinely saves you money, and when it does not
A mobile visit can avoid a separate recovery charge when the car will not start and can save a trip to a workshop. For a battery, alternator, brakes or service, compare like-for-like written quotes before deciding whether it saves money.
It doesn't save you money on work a mobile mechanic has to decline or price defensively. If the work may turn into a workshop job halfway through, paying a call-out to find that out is a real cost. Ask at booking rather than discovering it in your driveway.
Before you book: a seven-point check
Use these seven questions before you book.
- Confirm the car will be at a location that is not legally a road, and that the occupier permits the work there.
- Describe the fault and give the car's make, model, engine size and registration when you book, because that decides whether the job is doable at your address.
- Ask outright whether this specific job can be completed at your address, or only diagnosed.
- Ask what the call-out fee is and whether it comes off the bill if the work goes ahead.
- Ask whether they supply the parts, and what the guarantee covers on parts and on labour.
- For an air-conditioning regas, ask which body issued their F-Gas certificate.
- Ask what happens to the old oil, and whether they are a registered waste carrier.
Frequently asked questions
Can a mobile mechanic do an MOT?
No. An MOT can only be carried out at an authorised test station with the approved premises, equipment and authorised examiner required for its vehicle classes. An ordinary driveway visit does not meet those station requirements. A mobile mechanic can do a pre-MOT check, or collect the car and take it to a station.
Can a mobile mechanic work on my car if I only have street parking?
Paid restricted works on a road are an offence in England and Wales under section 4 of the Clean Neighbourhoods and Environment Act 2005, and Northern Ireland has a corresponding rule. Arrange a location that is not legally a road and get the occupier's permission. The exception requires repairs arising from an accident or breakdown, necessity on the spot or elsewhere on the road, and completion within 72 hours or later local-authority authorisation.
Can a mobile mechanic regas my air-conditioning?
A mobile technician can regas it if the refrigerant work is done by a properly qualified person. GOV.UK requires a qualification to recover refrigerant from mobile air-conditioning in passenger vehicles with 8 seats or fewer and goods vehicles under 3.5 tonnes, and says working with F gas without the correct qualifications is against the law. Ask which body issued the certificate.
Are mobile mechanics cheaper than garages?
The displayed cost profiles average £156 for the mobile category (625 profiles) and £710 for mechanic shops (581 profiles). The pages do not publish enough methodology or job-level data to show whether that gap is a like-for-like discount, so compare written quotes for the same job.
Is a mobile mechanic as qualified as a garage technician?
The Regulated Professions Register lists 281 regulated professions and its current search does not list a general mechanic or vehicle-technician profession. That does not establish every qualification or legal requirement that may apply to a particular task, so ask about relevant training, insurance and written terms. The Motor Ombudsman's current Service and Repair Code expressly covers mobile mechanics.
Can a mobile mechanic replace a clutch or a cambelt?
Some do and others decline. It depends on the engine layout, the tooling needed, how long the car must sit immobile and the condition of the fixings. A trader who does clutches on one model may refuse another, so ask about your exact car rather than the job in general.
What happens if it rains, or if the job turns out to be too big?
Weather can make some work unsafe or impractical. Ask at booking what happens if the job is postponed or has to move to a workshop, including whether another call-out charge applies.
Do mobile mechanics bring the parts, and is the work guaranteed?
Ask who will source the parts and whether diagnosis may mean a return visit. Additional written guarantees vary by trader, so get their period and coverage on parts and labour in writing. Your statutory rights for services, including reasonable care and skill and available remedies, do not depend on an additional guarantee. If it goes wrong, here is how to complain about a garage.
Finding a mobile mechanic or a garage near you
Match the job to the provider before you book. For services, brakes, batteries, starters, alternators and diagnostics, book mobile mechanics near you and have the work done on your drive. For the jobs that need a workshop, and for a clutch or cambelt a mobile trader has declined, use local garages.
Air-conditioning work goes to a certificated handler, the MOT goes to an authorised test station, and a car that has actually stopped at the roadside is a breakdown call rather than a repair booking. Whichever you need, describe the fault, the car and where it is parked when you make contact, because those three facts decide who you should be calling.